Robert Drysdale
Highly touted Brazilian Jiu Jitsu master Robert Drysdale has trained some of the greatest UFC fighters of all time. There was a hug buzz when he signed for the UFC as a 5-0 prospect, but his dramas started way before he even got in the octagon.
Expected to debut for the promotion at UFC 167, Drysdale got popped for elevated testosterone during an out-of-competition test. Again he failed for the same infraction after his eventual 2014 debut, where his win over Keith Berish was overturned to a NC.